Coating with fusible material.



"0. F. JENKINS. COATING WITH FUSIBLE MATERIAL. APPLICATION FILED DEC. I6. I914- 1,139,291 Patented May 11, 1915 j I A9 1 A i L T;- ;f g y efi which is 5 Columbia,

V shown. also in Fig. 80

cmnnns rnnnc'rsm, or iwnsnmsrcn; nisrnrcr' or constraincomma-mm 'rnsmrinmnrnnmn Application med December To all whom it may concern:

Be it known that I, Canines FRANCIS JENKINS, a citizen of the United States, residing at Washington, in the District of have invented certain new and useful Improvementsin Coatin with Fusible Material, of which the fol owing is a specification, reference being had therein to the accompan ing drawing.

The genera object of this invention is to coat metallic or .other articles with metal or other fusible material, and this object is attained by fusingthefcoating material and driving small particles thereof against the ob'ect to be coated at a very hifgh velocity. in the specific embodiment o the invention selected for illustration a metallic wire sed by an electric current and thrown,

articles, violently againstthe surlib coated, the arrangement being such that the fused metal comes in contact likel to quickly oxidize it or otherwise 0 emica 1y change its character. In the accompanying drawings, Fi re 1 is an axial section of a pistol-like device for carrying out the Fi 2 is detached view of feed rollers seen in ig. 1. ...Fig. 3

is an end view of a plug 1. Fig. 4 is a sectional view of a check valve shown in dotted lines in Fig. 1. In Fig. 5 is a partial sectional view showin plane of section being axial as in Fig. 1.

In these figures, A represents the barrel and B the handle of a pistol-like frame carrying various working parts of the device. The 'part A has an internal assage extending from end to end, pre erably up; wardly inclined at the rear, and obstructed near its rear end by a strong fixed plug C ooved along its lower side as shown at g. The forward portion of the passage is preferably provided with a linm lat mg material, and within-thislining fits a hollow cylinder E of; carbon having ts rear end portion cut obliquely so that its lower side is materially shorter than its ups rovided with \IS repeated rapidly and indefinitely. When per portion. The handle is assage opening into the arrel passage be ow the overhanging part of the cylmder V E, and in the upper part of this passa 1s fixed a long axlally perforated carbon b ock .;F through which is fed a small wlre orrod t I specification of Letters ratent.

process above suggested.

a modified construction, the.

sleeve 1) of heat' and electricallyinsu- Patented May 11, 1915.

16, 1914.. serial no. 877,593.

G of the coating metal, the feeding being done byrollers as hereinafter set forth Conductors I, I brought in a flexible cable from-any suitable source of electric current, pass into the handle and to the ('1 block F, respectively. A flexible tube J Ziiters the handle and passes to the short spacev 0r chamber between the plug 0 and the rear end of the cylinder E and is provided near its end with a check valve K. This tube delivers or ma deliver, any suitable explosive material. have used oxyhydrogen gas with satisfactory results, but

1 known explosives may be 'used.-

other we In the-handle is revolubly mounted a gearlike disk L having peripheral wings L parallel to its axis and fitting in the groove C in the block C. lhe shaft M of the disk bears a worm N which engages a gear 0 fixeillI to the shaft P of one of the feed rollers If this device be directed toward any object to be coated, and at any suitable distance therefrom, while connected with proper sources of. supply of current and fuel under light pressure, advancin the rod, G into contact with the cylinder completes circuit, and the rod being relatively small the part within rel carries the entire current unaided, with the result of instant fusion and, if the current be adequate to produce such result, partial and explosive conversion into gas. At the same moment, the fuel in the rear of the rod is exploded, the check valve -K is automati cally closed and the fused and nonvolatilized portion of the metal is converted into small particles and throwrr with extremely high veloci y against the object Q to be coated, the velocity of course depending upoii the char'- acter of the explosive actlons, or the intensity of the current and the kind of fuel supplied, A small part of created drives matter rearward in the groove 0' against the wings L5 and thus rotates the feed rollers and. advances the rod again into cotact with the cylinder E, .andthus the described cycle of operations the object to be coated is clean metal and the coating rod" is also of metal or of any combination of metals, the object may thus be provided with a coating of any desired cylinder E the passage in the barthe pressure thickness apparently integral with the metal of the object, the particles of coating the Object.

' and is ra idly diss1pated.

metal unitin with the metal-of and with eac other.-

When the object is non-metallic and rous, whether of wood, paper, lace, or ot er textile fabric, desired degree. For example, the innumerable particlesv ofmetal may be driven into the pores of the object so as to give it a slight metallic tinge without changing its obvious character as wood, paper, etc., or the article may .be provided with a full metallic covering, the difierence in result depending simply upon the time during which the object is exposed to the blast of metallic particles.

When the coating is applied to a non-porous object with which the metal cannot integrally unite it will still adhere during its formation and the film so formed may be stripped from the surface and will present a counterparkgof any intaglio or relief design upon tha surface.

With proper proportion of the parts, it is quite'possible to obtain good results without admitting explosive, but relying wholly upon the explosive characterof the artial volatilization'of the metal, but in this case it is desirable to have only a small space in the rear of the rod or wire; and it is equally possible to use a current which causes no appreciable volatilization, if explosive material be used as first set forth.

Since it is desirable to have the space in the rear of the wire small in case no fuel is admitted and since I ma wish to feed the wire 'G without using t e explosive force generated by explosion, I have shown in Fig. 5 aconstruction in which the space in the rear of the wire is less than'in Fig. 1 and the feed rollers are rotated by geared connection with a small electric motor S, and there is no rearward opening from the exlosion chamber. This construction is preerred over'using the form of Fig. 1 and,

omittin the supply of explosive material, supplie bythe'pipe J.

tpis to be notedfthat the wire as it is melted by the current, is in contact with carbon or non-metallic material only .and that no weldinglcan occur. I And it may also it may be metallized to any ance to the nseam be mentioned that while the heat generated F is-of high intensity it is -malluin quantity What claim is: I

1. The methodof coating objects with fusible material which consists in suddenly fusing and in part volatilizing the coating material and applying the expansive force of the volatilized part to violently projecting the non-volatihzed part against the surface to be coated.

2. The method of coating objects with fusible material which consists in electrically fusing the material through its resistance to the assage of an electric current and throwing innumerable particles thereof with very high velocity against the object to be coated.

3. The method of metallizing porous nonmetallic bodies which consists in electrically fusing the coating metalthrough its resistpassage of an electric current, dividing it into extremelv small particles while fluid, and driving these particles with extremely high velocity against the body to be coated or metallized.

4. The method of coating articles with fusible material which consists in fusing the coating material and driving minute particles thereof against the article to be coated by the explosive action of explosive agents.

5. The method of coating with metal which consists in fusing smal quantities of the coating metal successively, and by the successive actionsof highly explosive agents driving minute particles of each small (11184111 tity against the surface to be coated.

6. he method of coating objects with fusible -material which consists in fusing a small portion of the coatin material by an electric current and violent y projecting numerous particles of the fused material against the object to be coated by means of an explosion caused by the heated coating material itself.

In testimony whereof I afiix my signaturein presence of two witnesses. I

CHARLES FRANCIS JENKINS.

- Witnesses JAMES L. CRAWFORD, Roam CRAIG GREENE. 

